/usr/include/qpid/sys/posix/Mutex.h is in libqpidcommon2-dev 0.16-7ubuntu5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | #ifndef _sys_posix_Mutex_h
#define _sys_posix_Mutex_h
/*
*
* Copyright (c) 2006 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "qpid/sys/posix/check.h"
#include <pthread.h>
#include <boost/noncopyable.hpp>
namespace qpid {
namespace sys {
class Condition;
/**
* Mutex lock.
*/
class Mutex : private boost::noncopyable {
friend class Condition;
static const pthread_mutexattr_t* getAttribute();
public:
typedef ::qpid::sys::ScopedLock<Mutex> ScopedLock;
typedef ::qpid::sys::ScopedUnlock<Mutex> ScopedUnlock;
inline Mutex();
inline ~Mutex();
inline void lock();
inline void unlock();
inline bool trylock();
protected:
pthread_mutex_t mutex;
};
/**
* RW lock.
*/
class RWlock : private boost::noncopyable {
friend class Condition;
public:
typedef ::qpid::sys::ScopedRlock<RWlock> ScopedRlock;
typedef ::qpid::sys::ScopedWlock<RWlock> ScopedWlock;
inline RWlock();
inline ~RWlock();
inline void wlock(); // will write-lock
inline void rlock(); // will read-lock
inline void unlock();
inline void trywlock(); // will write-try
inline void tryrlock(); // will read-try
protected:
pthread_rwlock_t rwlock;
};
/**
* PODMutex is a POD, can be static-initialized with
* PODMutex m = QPID_PODMUTEX_INITIALIZER
*/
struct PODMutex
{
typedef ::qpid::sys::ScopedLock<PODMutex> ScopedLock;
inline void lock();
inline void unlock();
inline bool trylock();
// Must be public to be a POD:
pthread_mutex_t mutex;
};
#define QPID_MUTEX_INITIALIZER { PTHREAD_MUTEX_INITIALIZER }
void PODMutex::lock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_lock(&mutex));
}
void PODMutex::unlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_unlock(&mutex));
}
bool PODMutex::trylock() {
return pthread_mutex_trylock(&mutex) == 0;
}
Mutex::Mutex() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_init(&mutex, getAttribute()));
}
Mutex::~Mutex(){
QPID_POSIX_ABORT_IF(pthread_mutex_destroy(&mutex));
}
void Mutex::lock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_lock(&mutex));
}
void Mutex::unlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_mutex_unlock(&mutex));
}
bool Mutex::trylock() {
return pthread_mutex_trylock(&mutex) == 0;
}
RWlock::RWlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_init(&rwlock, NULL));
}
RWlock::~RWlock(){
QPID_POSIX_ABORT_IF(pthread_rwlock_destroy(&rwlock));
}
void RWlock::wlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_wrlock(&rwlock));
}
void RWlock::rlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_rdlock(&rwlock));
}
void RWlock::unlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_unlock(&rwlock));
}
void RWlock::trywlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_trywrlock(&rwlock));
}
void RWlock::tryrlock() {
QPID_POSIX_ASSERT_THROW_IF(pthread_rwlock_tryrdlock(&rwlock));
}
}}
#endif /*!_sys_posix_Mutex_h*/
|